Topic: Who would be interested in a HotSyncing tool?

[manjisann]

I've always been amazed at members such as Hondaman, or evolution7 to name a few, that come up with useful even vital services to offer SOHC4 members and have always wanted to do something similar. I think I've found something that may fit the bill. Soos was posting about a tool someone used to "hotsync" his carbs. My understanding of the basic function is temperature sensors are hooked onto the individual headers and fed into a display that shows the realtime temp of each pipe as you ride around. While this wouldn't take the place of a tuneup by any means, or even possibly a plug chop, what I believe it would do is allow you to see in real time what the different carb circuits are doing relative to eachother. According to Soos it is also mostly useful in adjusting for high rpm running.

Anyway, this seems like a really useful tool for fine tuning our carbs, and I am just wondering who would be interested in such a device? At this point in time I'm just working on developing a prototype, so nothing is set in stone, but it would have the temp leads that go to the pipes, and 4 four digit displays for temp, and we are hoping to include some sort of memory button you can hit to record the temps at that point in time. We might even be able to do it so you can record multiple readings, and could possibley make it so the memory button is actually a lead that you can temporarily hook to one of your handlebar grips so you wouldn't have to remove your hand from the bars to activate it.

Current cost projections are unfortunately are between $150 to $200 due to the fact we need four of a lot of stuff and some of it is a bit pricey. Obviously some of the proceeds of sales would go back to supporting this awesome forum.

Anyhow, thats the sales pitch, not taking orders just trying to test the waters to see if this would be worth it to develop.

Thanks,

Brandon

[honda750k]

I think this would be like a lambada sensor or similar if you were in the fuel injected tuner world.   

but basically you're saying a sensor in each pipe to determine the air/fuel ratio at all rpms and do datalogging.   

Not a bad idea, but honestly, its a lot of money fo little gain.

[razor02097]

Measures temp of pipe at head not A/F ratios.

[manjisann]

It would just measure temps, letting you know which cylinders are burning hotter than others.

Brandon

[Zaipai]

Personally I think it sounds like a great idea. I sure would probably get one if I had the money. I paid what almost $100 for the Carb Sync gauges I have now so.. any thing to squeak out that extra few HP's..

[fang]

There a whole lot of CHEAP monometers out there that include temp sensor probes.  I'm talking maybe $15-$20 each.  I am not sure anyone wants to drive around with a bunch of these things strapped to their handlebars, but it is an inexpensive option.
-fang

[razor02097]

There a whole lot of CHEAP monometers out there that include temp sensor probes.  I'm talking maybe $15-$20 each.  I am not sure anyone wants to drive around with a bunch of these things strapped to their handlebars, but it is an inexpensive option.
-fang

Just how hot do you think the pipes get at the head?  Unless your planning on remote pyrometer type gauges (which cost 150-300 bucks each) you would max out a thermometer you get from a hardware store which is only designed for temps 400'F or less

[manjisann]

The thermocouplers we are looking at can measure up to 2000 F, and the temp readout would be the size of a small walkman. As stated this is still in the R&D stage, and we are hoping to make it even less expensive as I know cost is always in the forefront of everything we diy guys do. The advantage of this setup over some of the singular ones is it would measure each pipe in real time so you could see all of them relative to eachother, and if you make mods see how that effects output. It's obviously not going to be as accurate as an AF sensor in telling how well the fuel is burning, but it would let you see realtime what any adjustments have done. It's only meant as a calibration device and not permanant, the probes would be held onto the pipes via magnets, and depending on how small we can get the box, it'll either hang from your bars or attach to the fuel tank in a way that wouldn't damage it.

It's really gonna be geared more for eeking out that last bit of performance than for general "it runs fairly well" sorta tuning. 

Thus far though, it's seeming interest is relatively low.

Brandon

[Soos]

You find the bits, and I'll gladly test it permanently for you!!
Oh... wait, I've already got access to one!



Seriously though...
Yeah, you get one made, i'm on the wagon if under $50.00.




l8r

[razor02097]

I would also be interested manjisann

[Achmed]

Interesting idea. But it does measure the result of a lot of different inputs to the header temperatures. What is this, some kind of space shuttle we're building? Ha!

[Johnny5]

Does the sensor read the inside of the pipe or outside? I see some variables with wind drafts, ect if the sensors are on the outside.

Not to also be a downer, but I dont see a major gain over a good carb sync.

[jtb]

I've always been amazed at members such as Hondaman, or evolution7

Don't put evolution7 in the same sentence with Hondaman, please.  I've done business with both.  Mark is a dependable guy who follows through and actually delivers his products.  When he tells you what one of his products will do it does.  I am more than happy with my Hondaman ignition, never had the first problem with it.  evolution7, on the other hand, has my money, and I don't have his fusebox.  (No faces after this one, I'm [size=24
pt]PISSED)[/size]

[Achmed]

Man, what if something terrible happened to him or he had a death in the family or something?

[simon#42]

hi manjisann   exhaust gas temp meters [egt gauges ] are used in most light aircraft and work really well . ive used them on racing two strokes and as long as you use an under plug temp sensor as well they work ok [ the gas temp goes down when rich but also goes down when very weak , the plug temp rockets when weak ]  its easy on a single, not bad on a twin but its going to be a bit messy on a 4            http://www.aircraftspruce.com/menus/in/egtgauges.html

[Gordon]

What benefit would this have over an O2 sensor set-up? 

[eurban]

Measuring the exhaust gas temperatures rather than the header temperatures makes a huge difference in the usefulness of the data.  Pipe temps will not respond quickly and will be largely affected by head temps, airflow and other outside factors.  Basically the tool would be of limited usefulness if you are reading pipe temps.

[simon#42]

What benefit would this have over an O2 sensor set-up? 

the reaction time is much quicker

[manjisann]

hmmmmm it sounds like it may not be as useful of a tool as i had originally thought, thats deflating.

Brandon

[Gordon]

What benefit would this have over an O2 sensor set-up? 

the reaction time is much quicker

The reaction time of reading the exhaust header temperatures is much quicker than an O2 sensor reading the exhaust gas? 

I don't think so. 

[manjisann]

Gordon, I think he meant the o2 sensor is faster. *sigh* so many good ideas thrown down the drain cause they just aren't useful.

Brandon

[Gordon]

Gordon, I think he meant the o2 sensor is faster. *sigh* so many good ideas thrown down the drain cause they just aren't useful.

Brandon

Good ideas are always welcome!  At the very least they get people talking and lead to other good ideas. 

[manjisann]

I'm not going to completely give up on the idea. At the very least this thread pointed out some areas that would need to be looked into if I wanted to develop something useful

Brandon

[simon#42]

What benefit would this have over an O2 sensor set-up? 

the reaction time is much quicker

The reaction time of reading the exhaust header temperatures is much quicker than an O2 sensor reading the exhaust gas? 

I don't think so. 

sorry gordon  what i meant was the reaction time of reading the exhaust gas temp is faster than than an 02 sensor  , i use a thermocouple directly into the header pipe which has a reaction time of 0.1ms

[Deltarider]

hi manjisann   exhaust gas temp meters [egt gauges ] are used in most light aircraft and work really well . ive used them on racing two strokes and as long as you use an under plug temp sensor as well they work ok [ the gas temp goes down when rich but also goes down when very weak , the plug temp rockets when weak ]  its easy on a single, not bad on a twin but its going to be a bit messy on a 4  

Hi Simon,

Not being a native speaker, I'm not sure what you mean with 'weak'.
Please, forgive me, I'm in this forum to improve my English.
"I speak English. I learn it from a book, E-VEN-TUAL-LY."